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Finding the Fourth Proportional to 442,731.42, 610,969.43 and 251,756.51

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Solution

The fourth proportional to 442,731.42, 610,969.43 and 251,756.51 is: 347,424.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,731.42 : 610,969.43 = 251,756.51 : x
  2. Step 2: Convert to fraction form
    442,731.42/610,969.43 = 251,756.51/x
  3. Step 3: Cross multiply
    442,731.42x = 610,969.43 × 251,756.51
  4. Step 4: Simplify right side
    442,731.42x = 153,815,528,988.03
  5. Step 5: Solve for x
    x = 153,815,528,988.03/442,731.42
  6. Step 6: Final answer
    x = 347,424.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.